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Invoking the Talend Administration Center API programmatically

Once the JSON arguments are base-64 encoded, they can be passed as the sole parameter to the HTTP request. If you are integrating with Talend, your application might be written in regular Java, or possibly some other language, which should not cause any issues since the HTTP and base-64 are interoperable standards.

Before you begin

To invoke the Talend Administration Center API, the JSON objects must be base-64 encoded.

Procedure

  1. If you happen to be integrating with a Java application, use the following Apache Commons Base64 class method: org.apache.commons.codec.binary.Base64.encodeBase64()
  2. If you are using Talend, use the tLibraryLoad component to add the Apache Commons library.
  3. Retrieve the MetaServlet Job archive by downloading job_invoking_tac_api.zip to invoke the Talend Administration Center API from the Talend Job.
    It uses the encodeBase64() method within a tMap prior to the tRESTclient invocation of the Talend Administration Center API operations. Three operations are invoked, and each operation is invoked within its own SubJob. Each SubJob starts by initializing the request from the Context Parameters:
    • The first invocation looks up the taskId based on the human readable Job name.
    • The second invocation uses the taskId returned from the first invocation to trigger the Job.
    • The third invocation uses the returned execRequestId handle as the argument to the getTaskExecutionStatus operation to monitor the Job status.

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